Dianne Hackborn | 0ef403e | 2017-01-24 18:22:15 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.server.am; |
| 18 | |
Ben Murdoch | c26a5a8 | 2019-01-16 10:05:58 +0000 | [diff] [blame^] | 19 | import static android.provider.DeviceConfig.ActivityManager.KEY_MAX_CACHED_PROCESSES; |
| 20 | |
Michal Karpinski | 8596ded | 2018-11-14 14:43:48 +0000 | [diff] [blame] | 21 | import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_POWER_QUICK; |
| 22 | |
Ben Murdoch | c26a5a8 | 2019-01-16 10:05:58 +0000 | [diff] [blame^] | 23 | import android.app.ActivityThread; |
Dianne Hackborn | 0ef403e | 2017-01-24 18:22:15 -0800 | [diff] [blame] | 24 | import android.content.ContentResolver; |
| 25 | import android.database.ContentObserver; |
| 26 | import android.net.Uri; |
| 27 | import android.os.Handler; |
Ben Murdoch | c26a5a8 | 2019-01-16 10:05:58 +0000 | [diff] [blame^] | 28 | import android.provider.DeviceConfig; |
| 29 | import android.provider.DeviceConfig.OnPropertyChangedListener; |
Dianne Hackborn | 0ef403e | 2017-01-24 18:22:15 -0800 | [diff] [blame] | 30 | import android.provider.Settings; |
Ben Murdoch | c26a5a8 | 2019-01-16 10:05:58 +0000 | [diff] [blame^] | 31 | import android.text.TextUtils; |
Dianne Hackborn | 0ef403e | 2017-01-24 18:22:15 -0800 | [diff] [blame] | 32 | import android.util.KeyValueListParser; |
| 33 | import android.util.Slog; |
| 34 | |
| 35 | import java.io.PrintWriter; |
| 36 | |
| 37 | /** |
| 38 | * Settings constants that can modify the activity manager's behavior. |
| 39 | */ |
| 40 | final class ActivityManagerConstants extends ContentObserver { |
Amith Yamasani | b0c8a88 | 2017-08-28 09:36:42 -0700 | [diff] [blame] | 41 | |
Dianne Hackborn | 0ef403e | 2017-01-24 18:22:15 -0800 | [diff] [blame] | 42 | // Key names stored in the settings value. |
Dianne Hackborn | 83b40f6 | 2017-04-26 13:59:47 -0700 | [diff] [blame] | 43 | private static final String KEY_BACKGROUND_SETTLE_TIME = "background_settle_time"; |
Dianne Hackborn | cb01563 | 2017-06-14 17:30:15 -0700 | [diff] [blame] | 44 | private static final String KEY_FGSERVICE_MIN_SHOWN_TIME |
| 45 | = "fgservice_min_shown_time"; |
| 46 | private static final String KEY_FGSERVICE_MIN_REPORT_TIME |
| 47 | = "fgservice_min_report_time"; |
| 48 | private static final String KEY_FGSERVICE_SCREEN_ON_BEFORE_TIME |
| 49 | = "fgservice_screen_on_before_time"; |
| 50 | private static final String KEY_FGSERVICE_SCREEN_ON_AFTER_TIME |
| 51 | = "fgservice_screen_on_after_time"; |
Dianne Hackborn | 83b40f6 | 2017-04-26 13:59:47 -0700 | [diff] [blame] | 52 | private static final String KEY_CONTENT_PROVIDER_RETAIN_TIME = "content_provider_retain_time"; |
| 53 | private static final String KEY_GC_TIMEOUT = "gc_timeout"; |
| 54 | private static final String KEY_GC_MIN_INTERVAL = "gc_min_interval"; |
| 55 | private static final String KEY_FULL_PSS_MIN_INTERVAL = "full_pss_min_interval"; |
| 56 | private static final String KEY_FULL_PSS_LOWERED_INTERVAL = "full_pss_lowered_interval"; |
Dianne Hackborn | ffca58b | 2017-05-24 16:15:45 -0700 | [diff] [blame] | 57 | private static final String KEY_POWER_CHECK_INTERVAL = "power_check_interval"; |
| 58 | private static final String KEY_POWER_CHECK_MAX_CPU_1 = "power_check_max_cpu_1"; |
| 59 | private static final String KEY_POWER_CHECK_MAX_CPU_2 = "power_check_max_cpu_2"; |
| 60 | private static final String KEY_POWER_CHECK_MAX_CPU_3 = "power_check_max_cpu_3"; |
| 61 | private static final String KEY_POWER_CHECK_MAX_CPU_4 = "power_check_max_cpu_4"; |
Dianne Hackborn | 83b40f6 | 2017-04-26 13:59:47 -0700 | [diff] [blame] | 62 | private static final String KEY_SERVICE_USAGE_INTERACTION_TIME |
| 63 | = "service_usage_interaction_time"; |
| 64 | private static final String KEY_USAGE_STATS_INTERACTION_INTERVAL |
| 65 | = "usage_stats_interaction_interval"; |
| 66 | static final String KEY_SERVICE_RESTART_DURATION = "service_restart_duration"; |
| 67 | static final String KEY_SERVICE_RESET_RUN_DURATION = "service_reset_run_duration"; |
| 68 | static final String KEY_SERVICE_RESTART_DURATION_FACTOR = "service_restart_duration_factor"; |
| 69 | static final String KEY_SERVICE_MIN_RESTART_TIME_BETWEEN = "service_min_restart_time_between"; |
| 70 | static final String KEY_MAX_SERVICE_INACTIVITY = "service_max_inactivity"; |
| 71 | static final String KEY_BG_START_TIMEOUT = "service_bg_start_timeout"; |
Amith Yamasani | b0c8a88 | 2017-08-28 09:36:42 -0700 | [diff] [blame] | 72 | static final String KEY_BOUND_SERVICE_CRASH_RESTART_DURATION = "service_crash_restart_duration"; |
| 73 | static final String KEY_BOUND_SERVICE_CRASH_MAX_RETRY = "service_crash_max_retry"; |
Sudheer Shanka | f669010 | 2017-10-16 10:20:32 -0700 | [diff] [blame] | 74 | static final String KEY_PROCESS_START_ASYNC = "process_start_async"; |
Dianne Hackborn | 8c76d91 | 2018-08-23 15:20:05 -0700 | [diff] [blame] | 75 | static final String KEY_MEMORY_INFO_THROTTLE_TIME = "memory_info_throttle_time"; |
Amith Yamasani | e5bfeee | 2018-09-05 18:52:35 -0700 | [diff] [blame] | 76 | static final String KEY_TOP_TO_FGS_GRACE_DURATION = "top_to_fgs_grace_duration"; |
Dianne Hackborn | 0ef403e | 2017-01-24 18:22:15 -0800 | [diff] [blame] | 77 | |
Dianne Hackborn | 0ef403e | 2017-01-24 18:22:15 -0800 | [diff] [blame] | 78 | private static final int DEFAULT_MAX_CACHED_PROCESSES = 32; |
Dianne Hackborn | 83b40f6 | 2017-04-26 13:59:47 -0700 | [diff] [blame] | 79 | private static final long DEFAULT_BACKGROUND_SETTLE_TIME = 60*1000; |
Dianne Hackborn | cb01563 | 2017-06-14 17:30:15 -0700 | [diff] [blame] | 80 | private static final long DEFAULT_FGSERVICE_MIN_SHOWN_TIME = 2*1000; |
| 81 | private static final long DEFAULT_FGSERVICE_MIN_REPORT_TIME = 3*1000; |
| 82 | private static final long DEFAULT_FGSERVICE_SCREEN_ON_BEFORE_TIME = 1*1000; |
| 83 | private static final long DEFAULT_FGSERVICE_SCREEN_ON_AFTER_TIME = 5*1000; |
Dianne Hackborn | 83b40f6 | 2017-04-26 13:59:47 -0700 | [diff] [blame] | 84 | private static final long DEFAULT_CONTENT_PROVIDER_RETAIN_TIME = 20*1000; |
| 85 | private static final long DEFAULT_GC_TIMEOUT = 5*1000; |
| 86 | private static final long DEFAULT_GC_MIN_INTERVAL = 60*1000; |
Dianne Hackborn | 052e314 | 2017-12-19 16:08:30 -0800 | [diff] [blame] | 87 | private static final long DEFAULT_FULL_PSS_MIN_INTERVAL = 20*60*1000; |
| 88 | private static final long DEFAULT_FULL_PSS_LOWERED_INTERVAL = 5*60*1000; |
Dianne Hackborn | ffca58b | 2017-05-24 16:15:45 -0700 | [diff] [blame] | 89 | private static final long DEFAULT_POWER_CHECK_INTERVAL = (DEBUG_POWER_QUICK ? 1 : 5) * 60*1000; |
| 90 | private static final int DEFAULT_POWER_CHECK_MAX_CPU_1 = 25; |
| 91 | private static final int DEFAULT_POWER_CHECK_MAX_CPU_2 = 25; |
| 92 | private static final int DEFAULT_POWER_CHECK_MAX_CPU_3 = 10; |
| 93 | private static final int DEFAULT_POWER_CHECK_MAX_CPU_4 = 2; |
Dianne Hackborn | 83b40f6 | 2017-04-26 13:59:47 -0700 | [diff] [blame] | 94 | private static final long DEFAULT_SERVICE_USAGE_INTERACTION_TIME = 30*60*1000; |
Amith Yamasani | 119be9a | 2018-02-18 22:23:00 -0800 | [diff] [blame] | 95 | private static final long DEFAULT_USAGE_STATS_INTERACTION_INTERVAL = 2*60*60*1000L; |
Dianne Hackborn | 83b40f6 | 2017-04-26 13:59:47 -0700 | [diff] [blame] | 96 | private static final long DEFAULT_SERVICE_RESTART_DURATION = 1*1000; |
| 97 | private static final long DEFAULT_SERVICE_RESET_RUN_DURATION = 60*1000; |
| 98 | private static final int DEFAULT_SERVICE_RESTART_DURATION_FACTOR = 4; |
| 99 | private static final long DEFAULT_SERVICE_MIN_RESTART_TIME_BETWEEN = 10*1000; |
| 100 | private static final long DEFAULT_MAX_SERVICE_INACTIVITY = 30*60*1000; |
| 101 | private static final long DEFAULT_BG_START_TIMEOUT = 15*1000; |
Amith Yamasani | b0c8a88 | 2017-08-28 09:36:42 -0700 | [diff] [blame] | 102 | private static final long DEFAULT_BOUND_SERVICE_CRASH_RESTART_DURATION = 30*60_000; |
| 103 | private static final int DEFAULT_BOUND_SERVICE_CRASH_MAX_RETRY = 16; |
Sudheer Shanka | f669010 | 2017-10-16 10:20:32 -0700 | [diff] [blame] | 104 | private static final boolean DEFAULT_PROCESS_START_ASYNC = true; |
Dianne Hackborn | 8c76d91 | 2018-08-23 15:20:05 -0700 | [diff] [blame] | 105 | private static final long DEFAULT_MEMORY_INFO_THROTTLE_TIME = 5*60*1000; |
Amith Yamasani | e5bfeee | 2018-09-05 18:52:35 -0700 | [diff] [blame] | 106 | private static final long DEFAULT_TOP_TO_FGS_GRACE_DURATION = 15 * 1000; |
Dianne Hackborn | 0ef403e | 2017-01-24 18:22:15 -0800 | [diff] [blame] | 107 | |
Dianne Hackborn | 0ef403e | 2017-01-24 18:22:15 -0800 | [diff] [blame] | 108 | // Maximum number of cached processes we will allow. |
| 109 | public int MAX_CACHED_PROCESSES = DEFAULT_MAX_CACHED_PROCESSES; |
| 110 | |
Dianne Hackborn | 83b40f6 | 2017-04-26 13:59:47 -0700 | [diff] [blame] | 111 | // This is the amount of time we allow an app to settle after it goes into the background, |
| 112 | // before we start restricting what it can do. |
| 113 | public long BACKGROUND_SETTLE_TIME = DEFAULT_BACKGROUND_SETTLE_TIME; |
| 114 | |
Dianne Hackborn | cb01563 | 2017-06-14 17:30:15 -0700 | [diff] [blame] | 115 | // The minimum time we allow a foreground service to run with a notification and the |
| 116 | // screen on without otherwise telling the user about it. (If it runs for less than this, |
| 117 | // it will still be reported to the user as a running app for at least this amount of time.) |
| 118 | public long FGSERVICE_MIN_SHOWN_TIME = DEFAULT_FGSERVICE_MIN_SHOWN_TIME; |
| 119 | |
| 120 | // If a foreground service is shown for less than FGSERVICE_MIN_SHOWN_TIME, we will display |
| 121 | // the background app running notification about it for at least this amount of time (if it |
| 122 | // is larger than the remaining shown time). |
| 123 | public long FGSERVICE_MIN_REPORT_TIME = DEFAULT_FGSERVICE_MIN_REPORT_TIME; |
| 124 | |
| 125 | // The minimum amount of time the foreground service needs to have remain being shown |
| 126 | // before the screen goes on for us to consider it not worth showing to the user. That is |
| 127 | // if an app has a foreground service that stops itself this amount of time or more before |
| 128 | // the user turns on the screen, we will just let it go without the user being told about it. |
| 129 | public long FGSERVICE_SCREEN_ON_BEFORE_TIME = DEFAULT_FGSERVICE_SCREEN_ON_BEFORE_TIME; |
| 130 | |
| 131 | // The minimum amount of time a foreground service should remain reported to the user if |
| 132 | // it is stopped when the screen turns on. This is the time from when the screen turns |
| 133 | // on until we will stop reporting it. |
| 134 | public long FGSERVICE_SCREEN_ON_AFTER_TIME = DEFAULT_FGSERVICE_SCREEN_ON_AFTER_TIME; |
Dianne Hackborn | 83b40f6 | 2017-04-26 13:59:47 -0700 | [diff] [blame] | 135 | |
| 136 | // How long we will retain processes hosting content providers in the "last activity" |
| 137 | // state before allowing them to drop down to the regular cached LRU list. This is |
| 138 | // to avoid thrashing of provider processes under low memory situations. |
| 139 | long CONTENT_PROVIDER_RETAIN_TIME = DEFAULT_CONTENT_PROVIDER_RETAIN_TIME; |
| 140 | |
| 141 | // How long to wait after going idle before forcing apps to GC. |
| 142 | long GC_TIMEOUT = DEFAULT_GC_TIMEOUT; |
| 143 | |
| 144 | // The minimum amount of time between successive GC requests for a process. |
| 145 | long GC_MIN_INTERVAL = DEFAULT_GC_MIN_INTERVAL; |
| 146 | |
| 147 | // The minimum amount of time between successive PSS requests for a process. |
| 148 | long FULL_PSS_MIN_INTERVAL = DEFAULT_FULL_PSS_MIN_INTERVAL; |
| 149 | |
| 150 | // The minimum amount of time between successive PSS requests for a process |
| 151 | // when the request is due to the memory state being lowered. |
| 152 | long FULL_PSS_LOWERED_INTERVAL = DEFAULT_FULL_PSS_LOWERED_INTERVAL; |
| 153 | |
Dianne Hackborn | 83b40f6 | 2017-04-26 13:59:47 -0700 | [diff] [blame] | 154 | // The minimum sample duration we will allow before deciding we have |
| 155 | // enough data on CPU usage to start killing things. |
Dianne Hackborn | ffca58b | 2017-05-24 16:15:45 -0700 | [diff] [blame] | 156 | long POWER_CHECK_INTERVAL = DEFAULT_POWER_CHECK_INTERVAL; |
| 157 | |
| 158 | // The maximum CPU (as a percentage) a process is allowed to use over the first |
| 159 | // power check interval that it is cached. |
| 160 | int POWER_CHECK_MAX_CPU_1 = DEFAULT_POWER_CHECK_MAX_CPU_1; |
| 161 | |
| 162 | // The maximum CPU (as a percentage) a process is allowed to use over the second |
| 163 | // power check interval that it is cached. The home app will never check for less |
| 164 | // CPU than this (it will not test against the 3 or 4 levels). |
| 165 | int POWER_CHECK_MAX_CPU_2 = DEFAULT_POWER_CHECK_MAX_CPU_2; |
| 166 | |
| 167 | // The maximum CPU (as a percentage) a process is allowed to use over the third |
| 168 | // power check interval that it is cached. |
| 169 | int POWER_CHECK_MAX_CPU_3 = DEFAULT_POWER_CHECK_MAX_CPU_3; |
| 170 | |
| 171 | // The maximum CPU (as a percentage) a process is allowed to use over the fourth |
| 172 | // power check interval that it is cached. |
| 173 | int POWER_CHECK_MAX_CPU_4 = DEFAULT_POWER_CHECK_MAX_CPU_4; |
Dianne Hackborn | 83b40f6 | 2017-04-26 13:59:47 -0700 | [diff] [blame] | 174 | |
| 175 | // This is the amount of time an app needs to be running a foreground service before |
| 176 | // we will consider it to be doing interaction for usage stats. |
| 177 | long SERVICE_USAGE_INTERACTION_TIME = DEFAULT_SERVICE_USAGE_INTERACTION_TIME; |
| 178 | |
| 179 | // Maximum amount of time we will allow to elapse before re-reporting usage stats |
| 180 | // interaction with foreground processes. |
| 181 | long USAGE_STATS_INTERACTION_INTERVAL = DEFAULT_USAGE_STATS_INTERACTION_INTERVAL; |
| 182 | |
| 183 | // How long a service needs to be running until restarting its process |
| 184 | // is no longer considered to be a relaunch of the service. |
| 185 | public long SERVICE_RESTART_DURATION = DEFAULT_SERVICE_RESTART_DURATION; |
| 186 | |
| 187 | // How long a service needs to be running until it will start back at |
| 188 | // SERVICE_RESTART_DURATION after being killed. |
| 189 | public long SERVICE_RESET_RUN_DURATION = DEFAULT_SERVICE_RESET_RUN_DURATION; |
| 190 | |
| 191 | // Multiplying factor to increase restart duration time by, for each time |
| 192 | // a service is killed before it has run for SERVICE_RESET_RUN_DURATION. |
| 193 | public int SERVICE_RESTART_DURATION_FACTOR = DEFAULT_SERVICE_RESTART_DURATION_FACTOR; |
| 194 | |
| 195 | // The minimum amount of time between restarting services that we allow. |
| 196 | // That is, when multiple services are restarting, we won't allow each |
| 197 | // to restart less than this amount of time from the last one. |
| 198 | public long SERVICE_MIN_RESTART_TIME_BETWEEN = DEFAULT_SERVICE_MIN_RESTART_TIME_BETWEEN; |
| 199 | |
| 200 | // Maximum amount of time for there to be no activity on a service before |
| 201 | // we consider it non-essential and allow its process to go on the |
| 202 | // LRU background list. |
| 203 | public long MAX_SERVICE_INACTIVITY = DEFAULT_MAX_SERVICE_INACTIVITY; |
| 204 | |
| 205 | // How long we wait for a background started service to stop itself before |
| 206 | // allowing the next pending start to run. |
| 207 | public long BG_START_TIMEOUT = DEFAULT_BG_START_TIMEOUT; |
| 208 | |
Amith Yamasani | b0c8a88 | 2017-08-28 09:36:42 -0700 | [diff] [blame] | 209 | // Initial backoff delay for retrying bound foreground services |
| 210 | public long BOUND_SERVICE_CRASH_RESTART_DURATION = DEFAULT_BOUND_SERVICE_CRASH_RESTART_DURATION; |
| 211 | |
| 212 | // Maximum number of retries for bound foreground services that crash soon after start |
| 213 | public long BOUND_SERVICE_MAX_CRASH_RETRY = DEFAULT_BOUND_SERVICE_CRASH_MAX_RETRY; |
| 214 | |
Sudheer Shanka | f669010 | 2017-10-16 10:20:32 -0700 | [diff] [blame] | 215 | // Indicates if the processes need to be started asynchronously. |
| 216 | public boolean FLAG_PROCESS_START_ASYNC = DEFAULT_PROCESS_START_ASYNC; |
| 217 | |
Dianne Hackborn | 8c76d91 | 2018-08-23 15:20:05 -0700 | [diff] [blame] | 218 | // The minimum time we allow between requests for the MemoryInfo of a process to |
| 219 | // throttle requests from apps. |
| 220 | public long MEMORY_INFO_THROTTLE_TIME = DEFAULT_MEMORY_INFO_THROTTLE_TIME; |
| 221 | |
Amith Yamasani | e5bfeee | 2018-09-05 18:52:35 -0700 | [diff] [blame] | 222 | // Allow app just moving from TOP to FOREGROUND_SERVICE to stay in a higher adj value for |
| 223 | // this long. |
| 224 | public long TOP_TO_FGS_GRACE_DURATION = DEFAULT_TOP_TO_FGS_GRACE_DURATION; |
| 225 | |
Michal Karpinski | 201bc0c | 2018-07-20 15:32:00 +0100 | [diff] [blame] | 226 | // Indicates whether the activity starts logging is enabled. |
| 227 | // Controlled by Settings.Global.ACTIVITY_STARTS_LOGGING_ENABLED |
Wale Ogunwale | 342fbe9 | 2018-10-09 08:44:10 -0700 | [diff] [blame] | 228 | volatile boolean mFlagActivityStartsLoggingEnabled; |
Michal Karpinski | 201bc0c | 2018-07-20 15:32:00 +0100 | [diff] [blame] | 229 | |
Michal Karpinski | 8596ded | 2018-11-14 14:43:48 +0000 | [diff] [blame] | 230 | // Indicates whether the background activity starts is enabled. |
| 231 | // Controlled by Settings.Global.BACKGROUND_ACTIVITY_STARTS_ENABLED |
| 232 | volatile boolean mFlagBackgroundActivityStartsEnabled; |
| 233 | |
Dianne Hackborn | 0ef403e | 2017-01-24 18:22:15 -0800 | [diff] [blame] | 234 | private final ActivityManagerService mService; |
| 235 | private ContentResolver mResolver; |
| 236 | private final KeyValueListParser mParser = new KeyValueListParser(','); |
| 237 | |
| 238 | private int mOverrideMaxCachedProcesses = -1; |
| 239 | |
| 240 | // The maximum number of cached processes we will keep around before killing them. |
| 241 | // NOTE: this constant is *only* a control to not let us go too crazy with |
| 242 | // keeping around processes on devices with large amounts of RAM. For devices that |
| 243 | // are tighter on RAM, the out of memory killer is responsible for killing background |
| 244 | // processes as RAM is needed, and we should *never* be relying on this limit to |
| 245 | // kill them. Also note that this limit only applies to cached background processes; |
| 246 | // we have no limit on the number of service, visible, foreground, or other such |
| 247 | // processes and the number of those processes does not count against the cached |
| 248 | // process limit. |
| 249 | public int CUR_MAX_CACHED_PROCESSES; |
| 250 | |
| 251 | // The maximum number of empty app processes we will let sit around. |
| 252 | public int CUR_MAX_EMPTY_PROCESSES; |
| 253 | |
| 254 | // The number of empty apps at which we don't consider it necessary to do |
| 255 | // memory trimming. |
| 256 | public int CUR_TRIM_EMPTY_PROCESSES; |
| 257 | |
| 258 | // The number of cached at which we don't consider it necessary to do |
| 259 | // memory trimming. |
| 260 | public int CUR_TRIM_CACHED_PROCESSES; |
| 261 | |
Michal Karpinski | 201bc0c | 2018-07-20 15:32:00 +0100 | [diff] [blame] | 262 | private static final Uri ACTIVITY_MANAGER_CONSTANTS_URI = Settings.Global.getUriFor( |
| 263 | Settings.Global.ACTIVITY_MANAGER_CONSTANTS); |
| 264 | |
| 265 | private static final Uri ACTIVITY_STARTS_LOGGING_ENABLED_URI = Settings.Global.getUriFor( |
| 266 | Settings.Global.ACTIVITY_STARTS_LOGGING_ENABLED); |
| 267 | |
Michal Karpinski | 8596ded | 2018-11-14 14:43:48 +0000 | [diff] [blame] | 268 | private static final Uri BACKGROUND_ACTIVITY_STARTS_ENABLED_URI = |
| 269 | Settings.Global.getUriFor( |
| 270 | Settings.Global.BACKGROUND_ACTIVITY_STARTS_ENABLED); |
| 271 | |
Ben Murdoch | c26a5a8 | 2019-01-16 10:05:58 +0000 | [diff] [blame^] | 272 | private final OnPropertyChangedListener mOnDeviceConfigChangedListener = |
| 273 | new OnPropertyChangedListener() { |
| 274 | @Override |
| 275 | public void onPropertyChanged(String namespace, String name, String value) { |
| 276 | if (KEY_MAX_CACHED_PROCESSES.equals(name)) { |
| 277 | updateMaxCachedProcesses(); |
| 278 | } |
| 279 | } |
| 280 | }; |
| 281 | |
Dianne Hackborn | 0ef403e | 2017-01-24 18:22:15 -0800 | [diff] [blame] | 282 | public ActivityManagerConstants(ActivityManagerService service, Handler handler) { |
| 283 | super(handler); |
| 284 | mService = service; |
Dianne Hackborn | 0ef403e | 2017-01-24 18:22:15 -0800 | [diff] [blame] | 285 | } |
| 286 | |
| 287 | public void start(ContentResolver resolver) { |
| 288 | mResolver = resolver; |
Michal Karpinski | 201bc0c | 2018-07-20 15:32:00 +0100 | [diff] [blame] | 289 | mResolver.registerContentObserver(ACTIVITY_MANAGER_CONSTANTS_URI, false, this); |
| 290 | mResolver.registerContentObserver(ACTIVITY_STARTS_LOGGING_ENABLED_URI, false, this); |
Michal Karpinski | 8596ded | 2018-11-14 14:43:48 +0000 | [diff] [blame] | 291 | mResolver.registerContentObserver(BACKGROUND_ACTIVITY_STARTS_ENABLED_URI, false, this); |
Dianne Hackborn | 0ef403e | 2017-01-24 18:22:15 -0800 | [diff] [blame] | 292 | updateConstants(); |
Michal Karpinski | 201bc0c | 2018-07-20 15:32:00 +0100 | [diff] [blame] | 293 | updateActivityStartsLoggingEnabled(); |
Michal Karpinski | 8596ded | 2018-11-14 14:43:48 +0000 | [diff] [blame] | 294 | updateBackgroundActivityStartsEnabled(); |
Ben Murdoch | c26a5a8 | 2019-01-16 10:05:58 +0000 | [diff] [blame^] | 295 | DeviceConfig.addOnPropertyChangedListener(DeviceConfig.ActivityManager.NAMESPACE, |
| 296 | ActivityThread.currentApplication().getMainExecutor(), |
| 297 | mOnDeviceConfigChangedListener); |
| 298 | updateMaxCachedProcesses(); |
| 299 | |
Dianne Hackborn | 0ef403e | 2017-01-24 18:22:15 -0800 | [diff] [blame] | 300 | } |
| 301 | |
| 302 | public void setOverrideMaxCachedProcesses(int value) { |
| 303 | mOverrideMaxCachedProcesses = value; |
| 304 | updateMaxCachedProcesses(); |
| 305 | } |
| 306 | |
| 307 | public int getOverrideMaxCachedProcesses() { |
| 308 | return mOverrideMaxCachedProcesses; |
| 309 | } |
| 310 | |
| 311 | public static int computeEmptyProcessLimit(int totalProcessLimit) { |
| 312 | return totalProcessLimit/2; |
| 313 | } |
| 314 | |
| 315 | @Override |
| 316 | public void onChange(boolean selfChange, Uri uri) { |
Michal Karpinski | 201bc0c | 2018-07-20 15:32:00 +0100 | [diff] [blame] | 317 | if (uri == null) return; |
| 318 | if (ACTIVITY_MANAGER_CONSTANTS_URI.equals(uri)) { |
| 319 | updateConstants(); |
| 320 | } else if (ACTIVITY_STARTS_LOGGING_ENABLED_URI.equals(uri)) { |
| 321 | updateActivityStartsLoggingEnabled(); |
Michal Karpinski | 8596ded | 2018-11-14 14:43:48 +0000 | [diff] [blame] | 322 | } else if (BACKGROUND_ACTIVITY_STARTS_ENABLED_URI.equals(uri)) { |
| 323 | updateBackgroundActivityStartsEnabled(); |
Michal Karpinski | 201bc0c | 2018-07-20 15:32:00 +0100 | [diff] [blame] | 324 | } |
Dianne Hackborn | 0ef403e | 2017-01-24 18:22:15 -0800 | [diff] [blame] | 325 | } |
| 326 | |
| 327 | private void updateConstants() { |
Makoto Onuki | 73360ab | 2017-03-17 11:50:13 -0700 | [diff] [blame] | 328 | final String setting = Settings.Global.getString(mResolver, |
| 329 | Settings.Global.ACTIVITY_MANAGER_CONSTANTS); |
Dianne Hackborn | 0ef403e | 2017-01-24 18:22:15 -0800 | [diff] [blame] | 330 | synchronized (mService) { |
| 331 | try { |
Makoto Onuki | 73360ab | 2017-03-17 11:50:13 -0700 | [diff] [blame] | 332 | mParser.setString(setting); |
Dianne Hackborn | 0ef403e | 2017-01-24 18:22:15 -0800 | [diff] [blame] | 333 | } catch (IllegalArgumentException e) { |
| 334 | // Failed to parse the settings string, log this and move on |
| 335 | // with defaults. |
| 336 | Slog.e("ActivityManagerConstants", "Bad activity manager config settings", e); |
| 337 | } |
Dianne Hackborn | 83b40f6 | 2017-04-26 13:59:47 -0700 | [diff] [blame] | 338 | BACKGROUND_SETTLE_TIME = mParser.getLong(KEY_BACKGROUND_SETTLE_TIME, |
| 339 | DEFAULT_BACKGROUND_SETTLE_TIME); |
Dianne Hackborn | cb01563 | 2017-06-14 17:30:15 -0700 | [diff] [blame] | 340 | FGSERVICE_MIN_SHOWN_TIME = mParser.getLong(KEY_FGSERVICE_MIN_SHOWN_TIME, |
| 341 | DEFAULT_FGSERVICE_MIN_SHOWN_TIME); |
| 342 | FGSERVICE_MIN_REPORT_TIME = mParser.getLong(KEY_FGSERVICE_MIN_REPORT_TIME, |
| 343 | DEFAULT_FGSERVICE_MIN_REPORT_TIME); |
| 344 | FGSERVICE_SCREEN_ON_BEFORE_TIME = mParser.getLong(KEY_FGSERVICE_SCREEN_ON_BEFORE_TIME, |
| 345 | DEFAULT_FGSERVICE_SCREEN_ON_BEFORE_TIME); |
| 346 | FGSERVICE_SCREEN_ON_AFTER_TIME = mParser.getLong(KEY_FGSERVICE_SCREEN_ON_AFTER_TIME, |
| 347 | DEFAULT_FGSERVICE_SCREEN_ON_AFTER_TIME); |
Dianne Hackborn | 83b40f6 | 2017-04-26 13:59:47 -0700 | [diff] [blame] | 348 | CONTENT_PROVIDER_RETAIN_TIME = mParser.getLong(KEY_CONTENT_PROVIDER_RETAIN_TIME, |
| 349 | DEFAULT_CONTENT_PROVIDER_RETAIN_TIME); |
| 350 | GC_TIMEOUT = mParser.getLong(KEY_GC_TIMEOUT, |
| 351 | DEFAULT_GC_TIMEOUT); |
| 352 | GC_MIN_INTERVAL = mParser.getLong(KEY_GC_MIN_INTERVAL, |
| 353 | DEFAULT_GC_MIN_INTERVAL); |
| 354 | FULL_PSS_MIN_INTERVAL = mParser.getLong(KEY_FULL_PSS_MIN_INTERVAL, |
| 355 | DEFAULT_FULL_PSS_MIN_INTERVAL); |
| 356 | FULL_PSS_LOWERED_INTERVAL = mParser.getLong(KEY_FULL_PSS_LOWERED_INTERVAL, |
| 357 | DEFAULT_FULL_PSS_LOWERED_INTERVAL); |
Dianne Hackborn | ffca58b | 2017-05-24 16:15:45 -0700 | [diff] [blame] | 358 | POWER_CHECK_INTERVAL = mParser.getLong(KEY_POWER_CHECK_INTERVAL, |
| 359 | DEFAULT_POWER_CHECK_INTERVAL); |
| 360 | POWER_CHECK_MAX_CPU_1 = mParser.getInt(KEY_POWER_CHECK_MAX_CPU_1, |
| 361 | DEFAULT_POWER_CHECK_MAX_CPU_1); |
| 362 | POWER_CHECK_MAX_CPU_2 = mParser.getInt(KEY_POWER_CHECK_MAX_CPU_2, |
| 363 | DEFAULT_POWER_CHECK_MAX_CPU_2); |
| 364 | POWER_CHECK_MAX_CPU_3 = mParser.getInt(KEY_POWER_CHECK_MAX_CPU_3, |
| 365 | DEFAULT_POWER_CHECK_MAX_CPU_3); |
| 366 | POWER_CHECK_MAX_CPU_4 = mParser.getInt(KEY_POWER_CHECK_MAX_CPU_4, |
| 367 | DEFAULT_POWER_CHECK_MAX_CPU_4); |
Dianne Hackborn | 83b40f6 | 2017-04-26 13:59:47 -0700 | [diff] [blame] | 368 | SERVICE_USAGE_INTERACTION_TIME = mParser.getLong(KEY_SERVICE_USAGE_INTERACTION_TIME, |
| 369 | DEFAULT_SERVICE_USAGE_INTERACTION_TIME); |
| 370 | USAGE_STATS_INTERACTION_INTERVAL = mParser.getLong(KEY_USAGE_STATS_INTERACTION_INTERVAL, |
| 371 | DEFAULT_USAGE_STATS_INTERACTION_INTERVAL); |
| 372 | SERVICE_RESTART_DURATION = mParser.getLong(KEY_SERVICE_RESTART_DURATION, |
| 373 | DEFAULT_SERVICE_RESTART_DURATION); |
| 374 | SERVICE_RESET_RUN_DURATION = mParser.getLong(KEY_SERVICE_RESET_RUN_DURATION, |
| 375 | DEFAULT_SERVICE_RESET_RUN_DURATION); |
| 376 | SERVICE_RESTART_DURATION_FACTOR = mParser.getInt(KEY_SERVICE_RESTART_DURATION_FACTOR, |
| 377 | DEFAULT_SERVICE_RESTART_DURATION_FACTOR); |
| 378 | SERVICE_MIN_RESTART_TIME_BETWEEN = mParser.getLong(KEY_SERVICE_MIN_RESTART_TIME_BETWEEN, |
| 379 | DEFAULT_SERVICE_MIN_RESTART_TIME_BETWEEN); |
| 380 | MAX_SERVICE_INACTIVITY = mParser.getLong(KEY_MAX_SERVICE_INACTIVITY, |
| 381 | DEFAULT_MAX_SERVICE_INACTIVITY); |
| 382 | BG_START_TIMEOUT = mParser.getLong(KEY_BG_START_TIMEOUT, |
| 383 | DEFAULT_BG_START_TIMEOUT); |
Amith Yamasani | b0c8a88 | 2017-08-28 09:36:42 -0700 | [diff] [blame] | 384 | BOUND_SERVICE_CRASH_RESTART_DURATION = mParser.getLong( |
| 385 | KEY_BOUND_SERVICE_CRASH_RESTART_DURATION, |
| 386 | DEFAULT_BOUND_SERVICE_CRASH_RESTART_DURATION); |
| 387 | BOUND_SERVICE_MAX_CRASH_RETRY = mParser.getInt(KEY_BOUND_SERVICE_CRASH_MAX_RETRY, |
| 388 | DEFAULT_BOUND_SERVICE_CRASH_MAX_RETRY); |
Sudheer Shanka | f669010 | 2017-10-16 10:20:32 -0700 | [diff] [blame] | 389 | FLAG_PROCESS_START_ASYNC = mParser.getBoolean(KEY_PROCESS_START_ASYNC, |
| 390 | DEFAULT_PROCESS_START_ASYNC); |
Dianne Hackborn | 8c76d91 | 2018-08-23 15:20:05 -0700 | [diff] [blame] | 391 | MEMORY_INFO_THROTTLE_TIME = mParser.getLong(KEY_MEMORY_INFO_THROTTLE_TIME, |
| 392 | DEFAULT_MEMORY_INFO_THROTTLE_TIME); |
Amith Yamasani | e5bfeee | 2018-09-05 18:52:35 -0700 | [diff] [blame] | 393 | TOP_TO_FGS_GRACE_DURATION = mParser.getDurationMillis(KEY_TOP_TO_FGS_GRACE_DURATION, |
| 394 | DEFAULT_TOP_TO_FGS_GRACE_DURATION); |
Ben Murdoch | c26a5a8 | 2019-01-16 10:05:58 +0000 | [diff] [blame^] | 395 | |
| 396 | // For new flags that are intended for server-side experiments, please use the new |
| 397 | // DeviceConfig package. |
Amith Yamasani | b0c8a88 | 2017-08-28 09:36:42 -0700 | [diff] [blame] | 398 | |
Dianne Hackborn | 0ef403e | 2017-01-24 18:22:15 -0800 | [diff] [blame] | 399 | updateMaxCachedProcesses(); |
| 400 | } |
| 401 | } |
| 402 | |
Michal Karpinski | 201bc0c | 2018-07-20 15:32:00 +0100 | [diff] [blame] | 403 | private void updateActivityStartsLoggingEnabled() { |
| 404 | mFlagActivityStartsLoggingEnabled = Settings.Global.getInt(mResolver, |
| 405 | Settings.Global.ACTIVITY_STARTS_LOGGING_ENABLED, 0) == 1; |
| 406 | } |
| 407 | |
Michal Karpinski | 8596ded | 2018-11-14 14:43:48 +0000 | [diff] [blame] | 408 | private void updateBackgroundActivityStartsEnabled() { |
| 409 | mFlagBackgroundActivityStartsEnabled = Settings.Global.getInt(mResolver, |
| 410 | Settings.Global.BACKGROUND_ACTIVITY_STARTS_ENABLED, 1) == 1; |
| 411 | } |
| 412 | |
Dianne Hackborn | 0ef403e | 2017-01-24 18:22:15 -0800 | [diff] [blame] | 413 | private void updateMaxCachedProcesses() { |
Ben Murdoch | c26a5a8 | 2019-01-16 10:05:58 +0000 | [diff] [blame^] | 414 | String maxCachedProcessesFlag = DeviceConfig.getProperty( |
| 415 | DeviceConfig.ActivityManager.NAMESPACE, KEY_MAX_CACHED_PROCESSES); |
| 416 | try { |
| 417 | CUR_MAX_CACHED_PROCESSES = mOverrideMaxCachedProcesses < 0 |
| 418 | ? (TextUtils.isEmpty(maxCachedProcessesFlag) |
| 419 | ? DEFAULT_MAX_CACHED_PROCESSES : Integer.parseInt(maxCachedProcessesFlag)) |
| 420 | : mOverrideMaxCachedProcesses; |
| 421 | } catch (NumberFormatException e) { |
| 422 | // Bad flag value from Phenotype, revert to default. |
| 423 | Slog.e("ActivityManagerConstants", |
| 424 | "Unable to parse flag for max_cached_processes: " + maxCachedProcessesFlag, e); |
| 425 | CUR_MAX_CACHED_PROCESSES = DEFAULT_MAX_CACHED_PROCESSES; |
| 426 | } |
Dianne Hackborn | 0ef403e | 2017-01-24 18:22:15 -0800 | [diff] [blame] | 427 | CUR_MAX_EMPTY_PROCESSES = computeEmptyProcessLimit(CUR_MAX_CACHED_PROCESSES); |
| 428 | |
| 429 | // Note the trim levels do NOT depend on the override process limit, we want |
| 430 | // to consider the same level the point where we do trimming regardless of any |
| 431 | // additional enforced limit. |
| 432 | final int rawMaxEmptyProcesses = computeEmptyProcessLimit(MAX_CACHED_PROCESSES); |
| 433 | CUR_TRIM_EMPTY_PROCESSES = rawMaxEmptyProcesses/2; |
| 434 | CUR_TRIM_CACHED_PROCESSES = (MAX_CACHED_PROCESSES-rawMaxEmptyProcesses)/3; |
| 435 | } |
| 436 | |
| 437 | void dump(PrintWriter pw) { |
| 438 | pw.println("ACTIVITY MANAGER SETTINGS (dumpsys activity settings) " |
| 439 | + Settings.Global.ACTIVITY_MANAGER_CONSTANTS + ":"); |
| 440 | |
Dianne Hackborn | 0ef403e | 2017-01-24 18:22:15 -0800 | [diff] [blame] | 441 | pw.print(" "); pw.print(KEY_MAX_CACHED_PROCESSES); pw.print("="); |
| 442 | pw.println(MAX_CACHED_PROCESSES); |
Dianne Hackborn | 83b40f6 | 2017-04-26 13:59:47 -0700 | [diff] [blame] | 443 | pw.print(" "); pw.print(KEY_BACKGROUND_SETTLE_TIME); pw.print("="); |
| 444 | pw.println(BACKGROUND_SETTLE_TIME); |
Dianne Hackborn | cb01563 | 2017-06-14 17:30:15 -0700 | [diff] [blame] | 445 | pw.print(" "); pw.print(KEY_FGSERVICE_MIN_SHOWN_TIME); pw.print("="); |
| 446 | pw.println(FGSERVICE_MIN_SHOWN_TIME); |
| 447 | pw.print(" "); pw.print(KEY_FGSERVICE_MIN_REPORT_TIME); pw.print("="); |
| 448 | pw.println(FGSERVICE_MIN_REPORT_TIME); |
| 449 | pw.print(" "); pw.print(KEY_FGSERVICE_SCREEN_ON_BEFORE_TIME); pw.print("="); |
| 450 | pw.println(FGSERVICE_SCREEN_ON_BEFORE_TIME); |
| 451 | pw.print(" "); pw.print(KEY_FGSERVICE_SCREEN_ON_AFTER_TIME); pw.print("="); |
| 452 | pw.println(FGSERVICE_SCREEN_ON_AFTER_TIME); |
Dianne Hackborn | 83b40f6 | 2017-04-26 13:59:47 -0700 | [diff] [blame] | 453 | pw.print(" "); pw.print(KEY_CONTENT_PROVIDER_RETAIN_TIME); pw.print("="); |
| 454 | pw.println(CONTENT_PROVIDER_RETAIN_TIME); |
| 455 | pw.print(" "); pw.print(KEY_GC_TIMEOUT); pw.print("="); |
| 456 | pw.println(GC_TIMEOUT); |
| 457 | pw.print(" "); pw.print(KEY_GC_MIN_INTERVAL); pw.print("="); |
| 458 | pw.println(GC_MIN_INTERVAL); |
| 459 | pw.print(" "); pw.print(KEY_FULL_PSS_MIN_INTERVAL); pw.print("="); |
| 460 | pw.println(FULL_PSS_MIN_INTERVAL); |
| 461 | pw.print(" "); pw.print(KEY_FULL_PSS_LOWERED_INTERVAL); pw.print("="); |
| 462 | pw.println(FULL_PSS_LOWERED_INTERVAL); |
Dianne Hackborn | ffca58b | 2017-05-24 16:15:45 -0700 | [diff] [blame] | 463 | pw.print(" "); pw.print(KEY_POWER_CHECK_INTERVAL); pw.print("="); |
| 464 | pw.println(POWER_CHECK_INTERVAL); |
| 465 | pw.print(" "); pw.print(KEY_POWER_CHECK_MAX_CPU_1); pw.print("="); |
| 466 | pw.println(POWER_CHECK_MAX_CPU_1); |
| 467 | pw.print(" "); pw.print(KEY_POWER_CHECK_MAX_CPU_2); pw.print("="); |
| 468 | pw.println(POWER_CHECK_MAX_CPU_2); |
| 469 | pw.print(" "); pw.print(KEY_POWER_CHECK_MAX_CPU_3); pw.print("="); |
| 470 | pw.println(POWER_CHECK_MAX_CPU_3); |
| 471 | pw.print(" "); pw.print(KEY_POWER_CHECK_MAX_CPU_4); pw.print("="); |
| 472 | pw.println(POWER_CHECK_MAX_CPU_4); |
Dianne Hackborn | 83b40f6 | 2017-04-26 13:59:47 -0700 | [diff] [blame] | 473 | pw.print(" "); pw.print(KEY_SERVICE_USAGE_INTERACTION_TIME); pw.print("="); |
| 474 | pw.println(SERVICE_USAGE_INTERACTION_TIME); |
| 475 | pw.print(" "); pw.print(KEY_USAGE_STATS_INTERACTION_INTERVAL); pw.print("="); |
| 476 | pw.println(USAGE_STATS_INTERACTION_INTERVAL); |
| 477 | pw.print(" "); pw.print(KEY_SERVICE_RESTART_DURATION); pw.print("="); |
| 478 | pw.println(SERVICE_RESTART_DURATION); |
| 479 | pw.print(" "); pw.print(KEY_SERVICE_RESET_RUN_DURATION); pw.print("="); |
| 480 | pw.println(SERVICE_RESET_RUN_DURATION); |
| 481 | pw.print(" "); pw.print(KEY_SERVICE_RESTART_DURATION_FACTOR); pw.print("="); |
| 482 | pw.println(SERVICE_RESTART_DURATION_FACTOR); |
| 483 | pw.print(" "); pw.print(KEY_SERVICE_MIN_RESTART_TIME_BETWEEN); pw.print("="); |
| 484 | pw.println(SERVICE_MIN_RESTART_TIME_BETWEEN); |
| 485 | pw.print(" "); pw.print(KEY_MAX_SERVICE_INACTIVITY); pw.print("="); |
| 486 | pw.println(MAX_SERVICE_INACTIVITY); |
| 487 | pw.print(" "); pw.print(KEY_BG_START_TIMEOUT); pw.print("="); |
| 488 | pw.println(BG_START_TIMEOUT); |
Dianne Hackborn | 8c76d91 | 2018-08-23 15:20:05 -0700 | [diff] [blame] | 489 | pw.print(" "); pw.print(KEY_BOUND_SERVICE_CRASH_RESTART_DURATION); pw.print("="); |
| 490 | pw.println(BOUND_SERVICE_CRASH_RESTART_DURATION); |
| 491 | pw.print(" "); pw.print(KEY_BOUND_SERVICE_CRASH_MAX_RETRY); pw.print("="); |
| 492 | pw.println(BOUND_SERVICE_MAX_CRASH_RETRY); |
| 493 | pw.print(" "); pw.print(KEY_PROCESS_START_ASYNC); pw.print("="); |
| 494 | pw.println(FLAG_PROCESS_START_ASYNC); |
| 495 | pw.print(" "); pw.print(KEY_MEMORY_INFO_THROTTLE_TIME); pw.print("="); |
| 496 | pw.println(MEMORY_INFO_THROTTLE_TIME); |
Amith Yamasani | e5bfeee | 2018-09-05 18:52:35 -0700 | [diff] [blame] | 497 | pw.print(" "); pw.print(KEY_TOP_TO_FGS_GRACE_DURATION); pw.print("="); |
| 498 | pw.println(TOP_TO_FGS_GRACE_DURATION); |
Dianne Hackborn | 0ef403e | 2017-01-24 18:22:15 -0800 | [diff] [blame] | 499 | |
| 500 | pw.println(); |
| 501 | if (mOverrideMaxCachedProcesses >= 0) { |
| 502 | pw.print(" mOverrideMaxCachedProcesses="); pw.println(mOverrideMaxCachedProcesses); |
| 503 | } |
| 504 | pw.print(" CUR_MAX_CACHED_PROCESSES="); pw.println(CUR_MAX_CACHED_PROCESSES); |
| 505 | pw.print(" CUR_MAX_EMPTY_PROCESSES="); pw.println(CUR_MAX_EMPTY_PROCESSES); |
| 506 | pw.print(" CUR_TRIM_EMPTY_PROCESSES="); pw.println(CUR_TRIM_EMPTY_PROCESSES); |
| 507 | pw.print(" CUR_TRIM_CACHED_PROCESSES="); pw.println(CUR_TRIM_CACHED_PROCESSES); |
| 508 | } |
| 509 | } |